<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <!-- 准备好一个容器，用于让react渲染 -->
  <div id="test"></div>

  <!-- 引入react 核心库 -->
  <script src="../js/react.development.js"></script>
  <!-- 引入react-dom，用于支持react操作DOM -->
  <script src="../js/react-dom.development.js"></script>
  <!-- 引入babel，用于将jsx转化为js -->
  <script src="../js/babel.min.js"></script>

  <script type="text/babel"> //此处一定要将JavaScript 改为 babel， 让babel 翻译标签中的代码
    //模拟后台数据
    const arr = ['Angular', 'React', 'Vue']

    const VDOM = (
      <div>
        <h1>前端JS框架列表</h1>  
        <ul>
          {
            arr.map((item,index)=><li key={index}>{item}</li>)
          }
        </ul>
      </div>
    )

    //渲染虚拟DOM到页面
    ReactDOM.render(VDOM, document.getElementById('test'))
  </script>

</body>
</html>